GPT-5.6 Launching Tomorrow – Official Announcement from OpenAI

OpenAI has announced the launch of new GPT-5.6 models, set to be available tomorrow. The lineup includes three models with varying capabilities.
GPT-5.6 Launching Tomorrow – Official Announcement from OpenAI
OpenAI has announced the release of a new lineup of GPT-5.6 models, which will be available tomorrow. The lineup will feature three models:
- Sol – the largest and most powerful model, comparable to Mythos, yet priced at half the cost.
- Terra – an intermediate version, at the level of Opus 4.8.
- Luna – the cheapest and fastest model.
Meanwhile, OpenAI is already expanding preview access, allowing some lucky users to try out the models today.
Why it matters
AnalysisThis announcement is significant as the new GPT models could greatly impact the development of artificial intelligence technologies and their applications across various fields.
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